TS EAMCET · Chemistry · Polymers
If the number average molecular weight and weight average molecular weight of a polymer are 40000 and 60000 respectively, the polydispersity index of the polymer will be
- A \(>1\)
- B \( < 1\)
- C 1
- D zero
Answer & Solution
Correct Answer
(A) \(>1\)
Step-by-step Solution
Detailed explanation
Polydispersity index, \(\mathrm{PDI}=\frac{\bar{M}_w}{\bar{M}_n}\) where, \(\bar{M}_w=\) weight average molecular weight \(\bar{M}_n=\) number average molecular weight \(\mathrm{PDI}=\frac{60000}{40000}=1.5\) ie, \(\quad>1\)
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